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Effect of Host Genotypes and Weather Variables on the Severity and Temporal Dynamics of Sorghum Anthracnose in Ethiopia

Author(s): A. Chala | T. Alemu | L.K. Prom | A.M. Tronsmo

Journal: Plant Pathology Journal
ISSN 1812-5387

Volume: 9;
Issue: 1;
Start page: 39;
Date: 2010;
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Keywords: resistance | environment | Area under disease progress curve | C. sublineolum | susceptible

The severity and temporal dynamics of anthracnose on susceptible (BTx623 and AL70) and resistant lines (2001 PWColl No. 022 and 2001 HararghieColl No. 12) were studied in field plots during the 2007 and 2008 growing seasons in southern Ethiopia. The initial, final and mean anthracnose severities and area under disease progress curves were used as criteria to evaluate the response of the genotypes. Over the two years, the initial, final and mean anthracnose severities ranged from 0.88 to 16.13%, 7.56 to 78.38% and 3.57 to 46%, respectively, while area under disease progress curve averaged for the two years ranged from 221.31 to 2951.88. All the evaluation criteria showed highly significant variations (p

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